L'Église Chrétienne Évangélique de Saint-Thérèse (formerly known as Église des Frères Mennonites de Ste-Thérèse) began services and formally organized in 1967, when it joined the Canadian Conference of Mennonite Brethren (MB) Churches. The first building was occupied in 1967. Ernest Dyck is considered the founding leader of the group, and Ben Dyck was pastor when the congregation became independent in 1967. The congregation originated through outreach by the Église Chrétienne de St-Jérôme with support from the Canada Inland Mission, the evangelism arm of the Canadian MB Conference. The language of worship is French.

A significant revival broke out in the congregation in 1972-73 which saw leadership pass from former missionaries who had moved to Quebec to young Québécois. At that time, around 30 were baptized and added to the church. By 1982 membership stood at 118 members in spite of the fact that many members had left to start other Mennonite Brethren congregations in the area.

Even though Saint-Thérèse was planted by the St-Jérôme congregation, it became the more significant church in Quebec amongst the Mennonite Brethren as it eventually provided workers for the St-Laurent, St-Eustache, and Ste-Rose congregations.